package com.itheima;

import java.lang.reflect.Array;
import java.util.*;

public class CollectionsDemo {

    public static void main(String[] args) {
        test1();

    }

    private static void test0() {
        List<String> list = new LinkedList<>();
        Collections.addAll(list,"张三","李四","王五","赵六");
        list.forEach(System.out::println);
        System.out.println("--------------------------");
        //打乱集合的顺序
        Collections.shuffle(list);
        list.forEach(System.out::println);
    }

    public static  void test1(){
        List<Integer> list = new ArrayList<>();
        Collections.addAll(list,1,2,3,4,5,6,7,8,9,10);
        //按照倒序给集合排序
        Collections.sort(list);
        list.forEach(System.out::println);
        Collections.sort(list, (o1, o2) -> {
            //按照倒序排列
            return o2 - o1;
        });
        System.out.println("--------------------------");
        list.forEach(System.out::println);
        //让学生Student实现Comparable接口，这样也能给学生排序
        System.out.println("--------------------------");
        List<Student> list1 = new ArrayList<>();
        list1.add(new Student("赵六", 22));
        list1.add(new Student("张三", 20));
        list1.add(new Student("王五", 18));
        Collections.sort(list1);
        list1.forEach(System.out::println);

    }


}